The SINGER Slip Stop Thimbles in size large and xlarge are a sewer's bestfriend that protects your finger when hand sewing. These finger protectors feature small safety ridges on top of the thimble perfect for pushing a needle through your fabric safely. Whether you place the thimble on your middle finger or thumb, these sewing thimbles will not slip off your finger. Designed for multiple fingers, the metallic blue large sewing thimble has a 17 mm wide opening and the metallic purple xlarge sewing thimble has a 18mm wide opening. The new jewel-toned colored sewing thimbles are a complimentary sewing aid to the new color-coded SINGER tapestry needles, chenille needles, crewel needles. These thimbles are perfect for needlecraft, embroidery hand sewing, crocheting, knitting, and quilting. Their beautiful vibrant shiny color makes them a great addition to any sewing kit or sewing basket.